import { AsyncIterableLike, AsyncRetainer, Retainer, DistinctEqualAsyncFn, GroupAsyncFn } from "../core";
import { ExtendedAsyncIterable } from "./iterable-async";
import { AsyncIterableTuple } from "./iterable-async-tuple";
import { IterableTypeReferenceMap } from "./reference-map-type";
import { TC39AsyncIteratorHelpers } from "../tc39/async";
export declare class ExtendedIterableAsyncImplementation<T> extends TC39AsyncIteratorHelpers<T> implements ExtendedAsyncIterable<T> {
    protected referenceMap: IterableTypeReferenceMap;
    private readonly iterable;
    constructor(iterable: AsyncIterableLike<T>, referenceMap: IterableTypeReferenceMap);
    drain(): Promise<boolean>;
    hasAny(): Promise<boolean>;
    retain(retainer?: Retainer<T> | AsyncRetainer<T>): ExtendedAsyncIterable<T>;
    union<O>(other: AsyncIterableLike<O>): ExtendedAsyncIterable<T | O>;
    mask(maskIterable: Iterable<boolean>): ExtendedAsyncIterable<T>;
    maskReversible(maskIterable: Iterable<boolean>, reverse?: boolean): ExtendedAsyncIterable<T>;
    skip(count: number): ExtendedAsyncIterable<T>;
    distinct(equalityFn?: DistinctEqualAsyncFn<T>): ExtendedAsyncIterable<T>;
    group(fn: GroupAsyncFn<T, this, this>): ExtendedAsyncIterable<ExtendedAsyncIterable<T>>;
    tap(fn: (value: T) => void | Promise<void>): ExtendedAsyncIterable<T>;
    toTuple<S extends number>(size: S): AsyncIterableTuple<T, S>;
    toIterable(): AsyncGenerator<Awaited<T>, void, unknown>;
    [Symbol.asyncIterator](): AsyncIterator<T, any, undefined>;
}